Air-carbureting apparatus.



F. W.. 0. BOECKEM.

AIR CARBURETING APPARATUS. APPLICATION FILED 0Ec.'2,19|4.

1,246,704. Ymmd 1m 13 291?.

Aid-vest" Inventor:

FRITZ W. 0. BOECKEM,

OF LONDON, ENGLAND.

AIR-CARBURE'I'ING APPARATUS.

Specification of Letters Patent.

Patented Nov. 13, 191 '7.

Application filed December 2, 1914. Serial N 0. 875,164.

To all whom it may concern:

Be it known that I, FRITZ IVILHELM OTTO BOECKEM, a subject of the King of Great Britain and Ireland, residing at 30 to 33 Bolsover street, Great Portland street, London, England, have invented certain new and useful Improvements in Air-Carbureting Apparatus, of which the following is a specification.

This invention relates to improvements in air-carbureting, and is particularly applicable in connection with self-contained automatic plants for producing carburetcd air for incandescent gas lighting purposes.

The principal object of the invention is to produce a device wherein a thorough mixing of air and hydrocarbon Vapor is insured, and to prevent freezing due to the low temperature produced, when the hydrocarbon, for example, petrol, vaporizes, and to provide such a device with means for regulating the production and consumption of the mixture so made.

I will now describe my invention with reference to the accompanying drawings in which The figure is a transverse vertical section through a carbureting apparatus embodying my invention.

Referring to the figure, the carbureter A consists of a tubular structure formed by two tubular helixes a. a arranged side by side, that is to say, the spires of the helix a are interspaced with the spires of the helix (2, so that each spire of the helix (4 is covered at the top and bottom by a spire of the helix a.

At the top, the helix a an inl t pipe (4 for the petrol or other hydrocarbon to be vaporized. At the bottom this helix a communicates with a chamber 7), in which any residues or excess of hydrocarbon collect, to be drawnolf through the tap Z). At the bottom of the helix a an inlet 0 is provided for air, which consequently travels upward through tl e helix and thus in the opposite direction and in intimate contact with the downwardly flowing petrol or other fuel. The air thus becomes charged with petrol vapor, and issues through the exit pipe at the top in a highly carbureted is provided with Copies form. The helix a is provided at the loottom With an inlet pipe a for steam, hot water or heated air, the steam or other heatlng or protecting medium passing upward through the helix and finallv issuing from the pipe an at the top.

The heating of the helix a not only prevents freezing, due to the evaporation of the but also assists in vaporizing the li ployed than would be heating were provided.

I prefer to mount the double helix in an ter compared to the pitch of the helix, the

floor or the surface upon which the hydrocarbon flows, is substantially horizontal at any point, while its downward inclination is very slight. which conduces to an even distribution of the fuel over the entire width of the helix.

What I claim and ters Patent is:

A carbureter comprising a pair of vertically disposed two helically arranged partitions forming two superposed helically arranged chambers of rectanguar for a heating desire to secure by Letfluid communicating with the cross section, a supply pipe concentric cylinders having bottom of one of said chambers and an eduction pipe leading from pine for supplying of the other chamb air to the bottom the top thereof, a hydrocarbon to the top er. a pipe for supplying of said other chamber,

and a pipe for conducting the carbureted air from the top of said last named chamber.

In testimony whereof I have afiixed my signature in presence of two witnesses.

FRITZ WV. 0. BOECKEM. Witnesses:

ALBERT JONES, l'VILLIAM S. COLLINS.

Commissioner 0! Patents.

Washington, D. 0. 

